The snippet library.
Small, practical examples. Search by task or narrow things down below.
Find parents whose every child meets a rule
SQLite: Combine existence with the absence of a violating child to exclude parents with no children.
SQLite✓ Tested
Find parents with at least two child rows
SQLite: Use a correlated count when testing a per-parent threshold.
SQLite✓ Tested
Find records without any related rows
SQLite: NOT EXISTS avoids the NULL pitfalls of NOT IN when the subquery column can be missing.
SQLite✓ Tested
Find rows in the first result but not the second
SQLite: EXCEPT calculates a distinct result-set difference.
SQLite✓ Tested
Find rows shared by two query results
SQLite: INTERSECT compares complete selected rows and removes duplicates.
SQLite✓ Tested
Find the first day of a month
Round a date to its calendar month boundary.
date✓ Tested
Find the second-highest distinct value
SQLite: Select the maximum below the overall maximum to skip ties at the top.
SQLite✓ Tested
Format a timestamp
Extract a year and month from ISO timestamp text.
strftime✓ Tested
Generate every combination of two sets
SQLite: CROSS JOIN creates one result per possible pair, so the output size is the product of the input sizes.
SQLite✓ Tested
Generate numbers with a recursive CTE
Build a bounded sequence using SQL recursion.
recursive CTE✓ Tested
Give a result column a readable name
SQLite: Use AS to label a computed result column.
SQLite✓ Tested
Group by more than one field
SQLite: Each distinct combination of grouping fields produces its own row.
SQLite✓ Tested